Cheapest Kimi K3 API: Rustvy is 49% below the official price
Kimi K3 costs $0.600/$2.50 per 1M tokens from Moonshot. The lowest quote in the index is Rustvy: $0.400 in, $0.800 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | vs list | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $0.600 | $2.50 | 0% | 109M |
| 1 | $0.400 | $0.800 | −49% | 214M | |
| 2 | $0.450 | $2.25 | −18% | 133M | |
| 3 | $0.398 | $13.83 | +188% | 37.9M | |
| 4 | $4.98 | $4.98 | +443% | 20.1M | |
| 5 | $3.00 | $15.00 | +445% | 20.0M |
Scroll the table sideways to see every price.
Tokens per $100 assume a “code” mix: 5 input tokens per output token. Prices are crawled; verify them on the provider page before buying.
What to check before buying
- Test the key with the free API checker — it verifies the endpoint responds, without sending tokens.
- Compare the blended cost for your workload, not just the input price: output tokens dominate in agent workloads.
- Check uptime and minimum top-up: the cheapest provider is useless if it is down half the day.